Photographic multiplex copying-machine.



PATENTED we s, 190?,

. 0. PRANGE. MULTIPLEX 001mm momma.

AIPELIUATION FILED AUG. 25. 1904.

2 SHEETS-$131131? 1.

PATENTED AUG. 6, 1907.

0. PRANGE. PHOTOGRAPHIG MULTIPLBX 001 mm momma.

APPLICATION FILED AUG. 26. 1904.

i v a i In! 7 I UNITED S'lATES PATENT OFFICE.

osoisrnimen, or SOHONEBERG, NEAR BERLIN, GERMANY.

Specification of Letters Patent.

Patented Aug. 6, 1907.

Application filed August 26,1904. Serial No. 222,332x

To all whom it may concern:

150 it known that I, Oscan Palmer, merchant, a subject of the German Emperor, and a resident of Herbersstrasse 1, in Schtineberg, by Berlin, in the Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in Photographic Multiplex (.opying-Machines, of which the following is a specification.

This invention relates to photographic copying inachines, and it consists in certain features of novelty which will appear from the following description and be clearly defined in the appended claims, refer once being had to the accompanying drawings in which i Figure llv is a front elevation, partly in section, of a duplex copying, machine constructed according to this invention, Fig. 2 an end view partly in section, Figs. 3 and 4 are enlarged sectional details illustrating an exposing device fully referred to hereafter, Fig. 5 is a side elevation, partly in section, of a supply-and receiving drum described hereafter, and Fig. 6 is an end elevation, partly in section, of the latter as inserted in place. 7 I

The construction of the machine in the case represented is as iollows. In a frame 19 are arranged two copying devices, co sisting each of rollers l, 8, 9, 4, (i, and 7, an illuminating chamber 2, and a platen 3. The rollers are mounted in the frame 15) and are contained in a casing 37 which forms a light-tight conduit for the web of sensitized or photographic paper 50. The illuminating chamber 2, which at one end receives the negative 10, has at the other end a cylindrical compartment 2 communicating therewith and containing the exposing device. Each exposing device consists in substance of two flaps 28, 2!) of about semi-cylindrical shape (see also Figs. 3 and 4) arranged to turn on pivots 30 and inclosing a suitable source of light 51. The edges 31 of such flaps lying towards the negative 10 overlap each other when the flaps are closed by' the action of spiral springs 34. The other edge 32 of the upper flap 28 enters the lower [lap 29. Each flap has a pin 36 projecting from each of its ends 33, the arrangement being such that Whenever these pins are forced asunder the flaps turning on their pivots 30 are opened by their edges 31 being brought out of mutual engprgement (Fig. 4 This is done by slide pieces 27 gpided in. the frame 19 and having wedge-shaped ends '35 which enter between the pins 36, as will be more fully described hereafter. The slide pieces are retained in their normal position, that is, the position in 57. The platens 3, which serve to press the webs against the negatives, are guided in their motion bystnds 5 and subjected to the action of s w ngs 55 that tend to press theni against heads or nuts Z titted on the studs.

rollers l, 8, 9, 4, (i, 7, platens 3, and slide pieces 27, are operated by one common driving gear, that in the case represented is constructed as follows. A belt pulley it has a pinion ii on its shaft, this pinion meshing with a toothed wheel 12, whose shaft carries at one end a crank 13, and at the center a cam or eccentric 14. Attached to the crank are rods 15, which have their other ends titted to arms 17, provided with pawls l6, operating ratchet wheels 18 which are formed integral or fixedly connected with gears 18 meshing with wheels 5 keyed to the axes of the rollers 4. The rollers i and 7 of each copying device are connected with each other bya chain gear 20. On the cam 14 there rests a friction roller 2!. of a rod 22, held down by a weight 22 and carrying rollers 24arranged to run on inclined planes 23, carried by the platens 3, as shown. The rod 22 may he guided in its motion by the shalt oi the belt pulley 11, this shaft passing through a slot 22 of the rod, as will best appear from the section made in Fig. 2. The opposing ends 26 of the slide pieces are beveled, and the rod 22 has laterally-projecting arms 25 designed to act on such bevelings, in a manner fully described hereafter.

The operation of the machine is as follows. The roller 1 with the unexposed photographic paper is inserted in place in the manner usual for film rollers. The casing, 37 has a door 38 to such .end. The driving gear described is then set in motion so as to turn the arms 17 in the direction indicated by the arrows and feed the web 50-iorward through the required distance. This is done by the action of the rollers 4, ti, 7. After the web has been fed forward the cam 14 allows the rod 22 to descend, so as to press the platens 3 against the negatives it) by the rollers 24 running on the inclined planes and after this has been done the arms 25 act upon the beveled ends 26 of the slide pieces 2750 as to move these outward; The consequence of this is that the wedge-shaped ends 35 thereof force the. pins 36 asunder, against the action of the springs 34, so as to turn the flaps 28, 29 into the position shown in Fig. 4. Inthis way the source of light 51 is permitt d to act on the negatives and the portion of web covered thereby. Hereupon the rod 22 is again raised by the cam 14, with the result that first the light is cut off by the flaps closing again, when the platens 3 are rpl ased from the action of the rod 22 so as to return into their normal positions. On further operation of the driving gear the web will be fed forward through an addiiional distance, when the procedure (ll "cribed will recur.

The exposed paper may be r moved from the roller 7 through a door 30 oi the cash Drums with a sips-mic, removab e light-tight casing as shown n Fig. and '3 may be employed in plate of the drums i and 7 shown in Fig. l. 40 is a iigbtdight casing mounted loosely on rue drum shalt "it, .id after the drum has been placed in tho framc it) the casing is prevented from turning in suitable mannen The casing may advantageously be formed, as shown, in two semi-cylindrical parts hinged together, a slot being providedfor the web to pass through. This slot may have a light-tight cover 44 and be furnished with rollers 42, 43 to guide the web. The casing 37in such case is open at its upper edge, as shown in Fig. 6, the light-tight cover 44 of the drum casing as put in place resting thereon so as to prevent tho entrance of light.

What I claim is: d

'1. In a photographic printing nli lthllltf the combination of a light-tight conduit adapted to receive .a web of seusitized paper, an illuminating chamber to receive the negatlve, such chamber having an exposing device consisting oi two pivntally turning spring-actuated and mutually en gaging flaps forming portions of a cylinder, a movable platen; a source of light inclosed by these flaps means for intermittently feeding the web between the said illuminatim, chamber and the said platen, and means for simultaneously actuating the said exposing device and the platen relatively to each other so as to press the web and negative iogclher. and for simultaneously openin the exposing dc- Vicc, subatallfiall .5. in a photographic printing machine, the combination of a light-tight conduit adapted to receive a web of scnsiiizcd paper. an illuminating chamber to receive ihe negative, such chamber having an exposing device consisting of two pivoi'ally turning spriugoctuated and mutally e'ngagiu flaps forming portions 01' a cylinder, :1 source of light inclosed by these flaps. and actuating means consistin;: of a shaft, means for driving the latter, a cam mounted on the same. a vertically reciprocating rod arranged to ho lifted by the said cam, and a spring-actuated slide operated by the said rod, the outer and of such slidc being adapted to force the ilaps apart, web-carrying rollers located in line said light-tight conduit, and means driven by the said shaft for intermittently rotating such rollers, substantially as described.

in witness whereof I h'ave hereunto signed my name this 14th day of July 1904, in the presence 01. two subscribing witnesses.

OSCAR l'iiANtlll.

Witnesses llnNnY Hasrnn, \VILLIAM MAYNER. 

